Head of a golf club with high coefficient of restitution

ABSTRACT

A head of a golf club is provided with a high coefficient of restitution. The head has a club head with an opening and a through hole opposite each other, a face panel securely mounted on the opening of the club head, a shaft securely mounted in the through hole of the club head, a shock-proof component mounted in the shaft, and an anti-impulse component mounted in the shaft and abutting the face panel. When hitting a golf, the face panel deforms concavely and shock waves are generated. Some of the shock waves are transmitted to the shaft via the through hole. With the shock-proof component, the shock waves transmitted via the through hole may be obstructed and not be absorbed by the anti-impulse component, which let all of the remaining shock waves on the face panel can be absorbed by the anti-impulse component thoroughly.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation in part application of United States patent application filed on Aug. 3, 2018 and having application Ser. No. 16/054,159, the entire contents of which are hereby incorporated herein by reference.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a head of a golf club, especially to a head of a golf club with a high coefficient of restitution.

2. Description of the Prior Arts

A conventional golf club comprises a club and a head mounted on one end of the club. The head has a face panel mounted on one side of the head. The face panel has a specific thickness. A handle is formed on another end of the club. When a player grips the handle with hands and hits the golf, the golf club is swung and hits the golf at 45 meters per second, and the face panel with a coefficient of restitution approximately from 0.825 to 0.83 impacts the golf. At that time, the impact force makes the face panel slightly deform concavely by 0.2 to 0.25 millimeters at a striking point, and the golf also deforms by a reaction force and further, the golf pops out because of the reaction force.

According to experience and skill level, a golf player may be sorted as a professional golf player or an amateur. Besides, there are various types of golf clubs, one of which comprises a wood club with a hollow head, and this wood club is utilized to strike out for longer distances. A professional player can accurately adjust the hitting force and control movement in hitting the golf, so the professional player is able to strike out the golf to a longer desired distance. In contrast, an amateur cannot control movement and strike force as accurately as the professional player, so even using the same golf club and the same face panel, the amateur still cannot strike out the golf to the longer desired distance. In other words, the amateur using a conventional golf club may not reach a desired striking effect.

To overcome the shortcomings, the present invention provides a head of a golf club to mitigate or obviate the aforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a head of a golf club, the head having a face panel with a high coefficient of restitution. With the face panel with a high coefficient of restitution, an amateur can easily strike out the golf for a long distance.

Therefore, as the shaft is mounted in the club head and the buffer element is mounted on the shaft and abuts the inner surface of the face panel, when the golf is hit by a golf club with aforesaid head, the outer surface of the face panel is impacted and deforms concavely and the golf is popped out immediately. Meanwhile, the compressible and resilient buffer element may conserve the impulse and prevent the face panel from splitting or breaking. Therefore, a thickness of the face panel may be lower than that of a conventional face panel and thereby increasing coefficient of restitution to pop out the golf for a longer distance.

The head comprises a club head, a face pane, a shaft, a shock-proof component, and an anti-impulse component. The club head forms an opening and a through hole on two opposite sides of the club head, respectively. The face panel is securely mounted on the opening of the club head. The shaft is securely mounted in the through hole of the club head and forms a cavity. The cavity includes a bottom surface. The shock-proof component is mounted in the cavity of the shaft and comprises a first surface and a second surface. The first surface abuts the bottom surface of the cavity. The second surface is opposite the first surface. The anti-impulse component is mounted in the cavity of the shaft and comprises a third surface and a fourth surface. The third surface abuts the second surface of the shock-proof component. The fourth surface abuts an inner surface of the face panel.

After the head hits a golf, the impulse may make the face panel concave inward and the golf is stuck away and deformed, too. Meanwhile, the impulse become shock waves on the head. Some shock waves will be transmitted to the anti-impulse component via the face panel and some shock waves will be transmitted to the shaft via the through hole, which is opposite the face panel, of the club head. The shock waves on the shaft are obstructed by the shock-proof component, so said shock waves may not be absorbed by the anti-impulse component. Therefore, all of the remaining impulse and the shock waves on the face panel can be absorbed by the anti-impulse component, and thereby the coefficient of restitution of the head is improved and thereby the golf may be hit away distantly.

Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a head of a golf club in accordance with a first embodiment of the present invention;

FIG. 2 is an exploded perspective view of the head in accordance with the first embodiment of the present invention;

FIG. 3 is a sectional view of the head in FIG. 2;

FIG. 4 is a perspective view of the head in FIG. 2 when hitting a golf;

FIG. 5 is an exploded perspective view of the head in accordance with a second embodiment of the present invention;

FIG. 6 is a sectional view of the head in FIG. 5;

FIG. 7 is a sectional view of the head in accordance with the third embodiment of the present invention;

FIG. 8 is a sectional view of the head in accordance with the fourth embodiment of the present invention;

FIG. 9 is a perspective view of a head of a golf club in accordance with a fifth embodiment of the present invention;

FIG. 10 is an exploded perspective view of the head in accordance with the fifth embodiment of the present invention;

FIG. 11 is another exploded perspective view of the head in accordance with the fifth embodiment of the present invention;

FIG. 12 is a sectional view of the head in FIG. 9; and

FIG. 13 is a perspective view of another configuration of a shock-proof component of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIGS. 1, 2, and 3, a head of a golf club in accordance with the present invention has a high coefficient of restitution. In a first embodiment, the head comprises a club head 10, a shaft 20, and a buffer element 30.

The club head 10 is a hollow body. The club head 10 has a face panel 11 mounted on one side of the club head 10. The face panel 11 is made of a board and has an inner surface 111 and an outer surface 112. The outer surface 112 of the face panel 11 is configured to hit the golf. A thickness of the board is lower than that of the conventional board, which makes the face panel 11 have a high coefficient of restitution. The club head 10 has an installing seat 12 formed on another side of the club head 10. The installing seat 12 comprises a through hole communicating with an interior of the club head 10.

The shaft 20 is an elongated body. The shaft 20 comprises a cavity 21 at one end of the elongated body and a mounting portion 22 at another end of the elongated body.

The buffer element 30 is a compressible, resilient, and elongated body. The buffer element 30 has two ends, one of the ends is mounted in and combined with the cavity 21 of the shaft 20, and thus axes of the combined shaft 20 and buffer element 30 are perpendicular to the inner surface 111 of the face panel 11. The other end of the buffer element 30 protrudes out of the shaft 20 and an end surface of the other end of the buffer element 30 abuts the inner surface 111 of the face panel 11. The shaft 20 is mounted into the club head 10 through the through hole of the installing seat 12. The mounting portion 22 is mounted on and combined with the installing seat 12 of the club head 10.

Then please refer to FIGS. 1 to 3. In this embodiment, the shaft 20 is a hollow tube. Therefore, the cavity 21 is formed at one end of the tube. An outer wall of the mounting portion 22 has outer threads 221 and the through hole of the installing seat 12 has inner threads, so that the outer threads 221 of the mounting portion 22 and the inner thread of the installing seat 12 are securely threaded together. One end of the elongated body (i.e. the shaft 20) forms a positioning sleeve 223, and the positioning sleeve 223 is utilized to abut an exterior of the installing seat 12; the end of the elongated body is said another end comprising the mounting portion 22.

Then please also refer to FIG. 4. When a user swings the golf club and hits a golf, the face panel 11 of the club head 10 strikes the golf 40. Meanwhile, the outer surface 112 of the face panel 11 is impacted and deformed slightly and concavely. Because the inner surface 111 of the face panel 11 is abutted and supported by the resilient buffer element 30, the face panel 11 may not over deform to split or break but is capable of reverting to the original shape after hitting the golf.

The first embodiment of the present invention further comprises a cap 50. The cap 50 has outer threads 51 and the shaft 20 as the hollow tube has inner threads 222, so that the inner thread 222 of the shaft 20 and the outer thread 51 of the cap 50 are securely threaded together and thereby the shaft 20 is fixed.

Then please refer to FIG. 5 and FIG. 6. The second embodiment of the present invention is provided. In the second embodiment, the club head 10 is identical to the club head 10 in the first embodiment. One of the differences between the first embodiment and the second embodiment is that the shaft 20A in the second embodiment is a hollow tube. The shaft 20A comprises an opening 21A at one end of the shaft 20A and a mounting portion 22A at another end of the shaft 20A. A structure of the mounting portion 22A is identical to that of the mounting portion 22 in the first embodiment. The head according to the second embodiment of the present invention further comprises a receiving seat 60. The receiving seat 60 is a hollow body, one end of the receiving seat 60 is a closed end and another end of the receiving seat 60 is an open end. Therefore, the open end of the receiving seat 60 is concaved and forms a cavity 61. The receiving seat 60 has a positioning sleeve 62 formed on an outer surface of the receiving seat 60 and close to the open end. The receiving seat 60 is utilized to be mounted into the opening 21A of the shaft 20A and combined with the shaft 20A. One end of the buffer element 30 is mounted in the cavity 61 of the receiving seat 60 and another end of the buffer element 30 protrudes out of the shaft 20A and the receiving seat 60.

Then please refer to FIG. 7. The third embodiment of the present invention is provided. In the second embodiment, the club head 10 is identical to the club head 10 in the first embodiment. One of the differences between the first embodiment and the third embodiment is that the shaft 20B in the third embodiment is a hollow tube. The buffer element 30 is mounted at one end of the shaft 20B, and said end of the shaft 20B may be identical to that of the first embodiment or the second embodiment in structure. The shaft 20B comprises an assembling portion 201B formed at another end of the shaft 20B. The head according to the third embodiment of the present invention further comprises a mounting seat 22B. The mounting seat 22B is mounted on and combined with the assembling portion 201B. The shaft 20B is mounted into the club head 10 and the mounting seat 22B is mounted on and combined with the installing seat 12 of the club head 10. The assembling portion 201B has outer threads, and the mounting seat 22B is a hollow body and has inner threads and outer threads, so that the inner threads at one end of the mounting seat 22B and the outer threads of the assembling portion 201B are threaded together. The inner threads at another end of the mounting seat 22B are configured to be threaded with a cap 50B.

Then please refer to FIG. 8. The fourth embodiment of the present invention is provided. In the fourth embodiment, the club head 10 is identical to the club head 10 in the first embodiment. One of the differences between the first embodiment and the fourth embodiment is that the shaft 20C is a solid body. The shaft 20C comprises a cavity 21C formed at one end of the shaft 20C and a mounting portion 22C at another end of the shaft 20C. The cavity 21C is configured to be mounted with the buffer element 30. The shaft 20C is mounted into the club head 10, and thus the mounting seat 22C is mounted on and combined with the installing seat 12 of the club head 10.

Please refer to FIG. 9 to FIG. 12. The fifth embodiment of the present invention is provided. The differences between the fifth embodiment and the previous embodiments are described as follows. In the fifth embodiment, the head of a golf club comprises a club head 10D, a face panel 20D, a shaft 30D, a shock-proof component 40D, and an anti-impulse component 50D. The club head 10D forms an opening 11 and an installing seat on two opposite sides of the club head. The installing seat forms a through hole 12D. In this embodiment, the installing seat further forms a first stepped surface 120 in the through hole 12D. The face panel 20D is mounted on the opening 11 and the club head 10D. The shaft 30D comprises a column component 31D, and selectively comprises a weight adjusting component 32D and/or a lead weight component 33D. The column component 31D has a first end and a second end opposite to each other. The first end closes to the opening 11 of the club head 10D and the second end is securely mounted on the through hole 12D of the club head 10D. For example, the second end of the shaft 30D may be screwed in the through hole 12. In this embodiment, the shaft 30D further comprises a flange 311D. The flange 311D is formed at the second end of the column component 31D. The flange 311D is configured to abut the first stepped surface 120 and thereby a position of the column component 31D is assured, which prevents the column component 31D from being mounted too close to the opening 11 of the club head 10D.

The column component 31D may be a hollow body and thus a portion of a hollow space in the column component 31D is configured as a receiving space and another portion of the hollow space is configured as a through-mounted space. The column component 31D may have a second stepped surface 312D formed therein. The receiving space and the through-mounted space are divided by the second stepped surface 312D.

The weight adjusting component 32D is securely mounted in the through-mounted space of the column component 31D; for example, the weight adjusting component 32D is screwed in the through-mounted space. With the weight adjusting component 32D, the total weight of the head is increased. Precisely, since the club head 10D is hollow, the weight adjusting component 32D is configured to offset the weight lose because of casting, and thereby the head complies with the weight requirement. The weight adjusting component 32D has an abutting surface aligned to the second stepped surface 312D. Therefore, the receiving space is configured as a cavity, and the abutting surface of the weight adjusting component 32D and the second stepped surface 312D are configured as a bottom surface of the cavity. However, it is not limited thereto. In another embodiment without the second stepped surface 312D, the abutting surface of weight adjusting component 32D is configured as the bottom surface of the cavity.

The lead weight component 33D is securely mounted in the through-mounted space of the column component 31D; for example, the lead weight component 33D is screwed in the through-mounted space of the column component 31D. The location of the lead weight component 33D with respect to the column component 31D is adjustable, and thereby a center of gravity of the head is controllable so that the head is suitable for the player.

The shock-proof component 40D and the anti-impulse component 50D are mounted in the cavity of the shaft 30D. The shock-proof component 40D has a first surface and a second surface opposite to each other and the anti-impulse component 50D has a third surface and a fourth surface opposite to each other. The first surface of the shock-proof component 40D abuts the bottom surface of the cavity, i.e. the second stepped surface 312D and the abutting surface of the weight adjusting component 32D. However, in another embodiment without the weight adjusting component 32D, the first surface may only abut on the second stepped surface 312D; in another embodiment without the second stepped surface 312D, the first surface may only abut on the abutting surface of the weight adjusting component 32D. The third surface of the anti-impulse component 50D abuts the second surface of the shock-proof component 40D and the fourth surface of the anti-impulse component 50D abuts the inner surface of the face panel 20D. The shock-proof component 40D may be made from silicone and the anti-impulse component 50D may be made from Thermoplastic Elastomer, i.e., TPE, but it is not limited thereto. In some embodiment, the anti-impulse component 50D in the fifth embodiment may be the buffer element in the previous embodiments, but it is not limited thereto.

After the head hits a golf, the impulse may become shock waves on the entire head. Some of the shock waves will be transmitted to the anti-impulse component 50D via the face panel 20D and the shaft 30D via the face panel 20D and the through hole 12D, which is opposite the face panel 20D, of the club head 10D. The shock waves transmitted to the shaft 30D will be obstructed by the shock-proof component 40D, so the shock waves may not be transmitted to the anti-impulse component 50D via the shaft 30D, which allows the anti-impulse component 50D to absorb all the remaining impulse and the remaining shock waves on the face panel 20D. If the shock-proof component 40D only obstructs but does not absorb the shock waves, the golf is hit away while the shock waves are transmitted back to the face panel 20D, so the elasticity of the face panel 20D will not be affected. Besides, after the head hits a golf, the face panel 20D may deform inward and press the anti-impulse component 50D. Because the anti-impulse component 50D is supported by the shaft 30D and the shock-proof component 40D, the anti-impulse component 50D can help the face panel 20D to restore the original shape immediately. Therefore, the coefficient of restitution of the head is improved and thereby the golf may be hit away distantly and the player's demands can be achieved.

Moreover, in this embodiment, the anti-impulse component 50D may comprise an anti-impulse recession 500D formed on the third surface and concaved away from the shock-proof component 40D. Similarly, the weight adjusting component 32D may comprise a adjusting recession 320D formed on the abutting surface and concaved away from the shock-proof component 40D. Therefore, a contact area of the shock-proof component 40D and the anti-impulse component 50D or a contact area of the shock-proof component 40D and the weight adjusting component 32D is decreased, which avoids the shock waves on the entire head, except for the face panel 20D, being transmitted to the anti-impulse component 50D via the shock-proof component 40D, so that the anti-impulse component 50D can absorb the remaining shock waves on the face panel 20De and thereby the coefficient of restitution of the head is improved further and the golf will be hit away distantly.

Please refer to FIG. 13 also. In another embodiment, the anti-impulse component may not comprise said anti-impulse recession, but the recession is formed on the shock-proof component 40D′ instead. Precisely, the shock-proof component 40D′ may comprise a shock-proof recession 400D′ formed on the second surface of the shock-proof component 40D′ and concaved away from the anti-impulse component. Similarly, the shock-proof recession may be formed on the first surface of the shock-proof component, or two of the shock-proof recessions are formed on the first surface and the second surface of the shock-proof component respectively. Furthermore, the shock-proof component may have a channel formed through the first surface and the second surface of the shock-proof component.

Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed. 

What is claimed is:
 1. A head of a golf club, the head comprising: a club head forming: an opening and a through hole on two opposite sides of the club head, respectively; a face panel securely mounted on the opening of the club head; a shaft securely mounted in the through hole of the club head; the shaft forming: a cavity including a bottom surface; a shock-proof component mounted in the cavity of the shaft and comprising: a first surface abutting the bottom surface of the cavity; and a second surface opposite the first surface; and an anti-impulse component mounted in the cavity of the shaft and comprising: a third surface abutting the second surface of the shock-proof component; and a fourth surface abutting an inner surface of the face panel.
 2. The head of a golf club as claimed in claim 1, wherein the anti-impulse component comprises: an anti-impulse recession formed on the third surface and concaved away from the shock-proof component.
 3. The head of a golf club as claimed in claim 1, wherein the shock-proof component comprises: a shock-proof recession formed on the second surface and concaved away from the anti-impulse component.
 4. The head of a golf club as claimed in claim 1, wherein one end of the shaft is screwed in the through hole of the club head.
 5. The head of a golf club as claimed in claim 4, wherein: the club head comprises: a first stepped surface in the through hole; and the shaft has a flange abutting the first stepped surface.
 6. The head of a golf club as claimed in claim 1, wherein the shaft comprises: a column component comprising: a first end forming the cavity; and a second end opposite the first end and fixed in the through hole of the club head; and a weight adjusting component securely mounted in the column component.
 7. The head of a golf club as claimed in claim 6, wherein the weight adjusting component is screwed in the column component.
 8. The head of a golf club as claimed in claim 1, wherein the shaft comprises: a column component comprising: a first end forming the cavity; and a second end opposite the first end and fixed in the through hole of the club head; and a lead weight component mounted in the column component and being adjustable in location.
 9. The head of a golf club as claimed in claim 8, wherein the lead weight component is screwed in the column component. 